docker/cli · error

template parsing error: %w

Error message

template parsing error: %w

What it means

Error "template parsing error: %w" thrown in docker/cli.

Source

Thrown at cli/command/system/version.go:249

func prettyPrintVersion(out io.Writer, vd versionInfo, tmpl *template.Template) error {
	t := tabwriter.NewWriter(out, 20, 1, 1, ' ', 0)
	err := tmpl.Execute(t, vd)
	_, _ = t.Write([]byte("\n"))
	_ = t.Flush()
	return err
}

func newVersionTemplate(templateFormat string) (*template.Template, error) {
	switch templateFormat {
	case "":
		templateFormat = defaultVersionTemplate
	case formatter.JSONFormatKey:
		templateFormat = formatter.JSONFormat
	}
	tmpl, err := templates.New("version").Funcs(template.FuncMap{"getDetailsOrder": getDetailsOrder}).Parse(templateFormat)
	if err != nil {
		return nil, fmt.Errorf("template parsing error: %w", err)
	}
	return tmpl, nil
}

func getDetailsOrder(v system.ComponentVersion) []string {
	out := make([]string, 0, len(v.Details))
	for k := range v.Details {
		out = append(out, k)
	}
	sort.Strings(out)
	return out
}

View on GitHub (pinned to e9452d6e78)

When it happens

Trigger: Thrown at cli/command/system/version.go:249 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of docker/cli@e9452d6e78 (2026-08-01). Data as JSON: /data/errors/f2b87023c33ae001.json. Report an issue: GitHub.